The 6ft 3ins frontman had tormented Liverpool's backline with his power. He oozed confidence. His classy finish restored parity before Fabian Delph grabbed the winner.

Benteke's performance in that FA Cup semi-final went a long way to convincing Brendan Rodgers that the Belgium international was exactly what Liverpool required.

Owners Fenway Sports Group backed the manager to the hilt last July when they agreed to trigger his £32.5million release clause.

The second most expensive signing in the club's history was bought to make the difference, to provide the injection of firepower Liverpool had been so lacking since the departure of Luis Suarez.

Christian Benteke of Liverpool receives instructions from Jurgen Klopp the manager of Liverpool as he prepares to come on as a second half substitute during the UEFA Europa League Group B match between Liverpool FC and Rubin Kazan at Anfield on October 22, 2015 in Liverpool, United Kingdom. (Photo by Michael Regan/Getty Images)

It hasn't happened. And the desperate plight of the Reds' No 9 was laid bare by the fact that he played no part in the Capital One Cup final.

When Jurgen Klopp sought attacking inspiration in the second half, the manager called for Adam Lallana and Divock Origi. Benteke remained rooted to his seat.

It was no surprise. Since the turn of the year Benteke has slipped further and further down the pecking order.

Benteke has been fighting losing battle to prove he suits Klopp style

The doubts about his future at the club have grown to such an extent that it's now difficult to see a way back for him.